CN222227363U - Large cantilever light durable UHPC retaining wall - Google Patents
Large cantilever light durable UHPC retaining wall Download PDFInfo
- Publication number
- CN222227363U CN222227363U CN202420822729.6U CN202420822729U CN222227363U CN 222227363 U CN222227363 U CN 222227363U CN 202420822729 U CN202420822729 U CN 202420822729U CN 222227363 U CN222227363 U CN 222227363U
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- Prior art keywords
- retaining wall
- cfrp
- panel
- uhpc
- utility
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 36
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims abstract description 31
- 238000005266 casting Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 239000004567 concrete Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- -1 rebar Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
本实用新型公开了一种大悬臂轻型耐久UHPC挡土墙，包括采用超高性能混凝土浇筑而成的挡土墙主体和CFRP锚索，挡土墙主体由一对T形的挡墙个体构成，挡墙个体由底部的底板和沿纵向设置在底板上表面的面板组成，CFRP锚索两端分别锚固在两个挡墙个体的面板中从而将两个挡墙个体连接起来。本实用新型挡土墙具有卓越的耐腐蚀性能，挡土墙体积小、重量轻，尤其在软基地段，更为轻便的自重使得施工更为便捷，对地基的要求相对较低；本实用新型是“大悬臂”挡土墙，在挡土墙高度超过12米情况下，墙体本身重量更轻且高度更高，优势尤为突出；使用CFRP锚索连接UHPC面板，具有卓越的抗倾覆能力，且保证整体结构稳定性。
The utility model discloses a large cantilever light and durable UHPC retaining wall, including a retaining wall body cast with ultra-high performance concrete and a CFRP anchor cable, the retaining wall body is composed of a pair of T-shaped retaining wall individuals, the retaining wall individuals are composed of a bottom plate at the bottom and a panel arranged on the upper surface of the bottom plate in the longitudinal direction, and the two ends of the CFRP anchor cable are respectively anchored in the panels of the two retaining wall individuals to connect the two retaining wall individuals. The retaining wall of the utility model has excellent corrosion resistance, small size and light weight, especially in the soft base section, the lighter deadweight makes the construction more convenient, and the requirements for the foundation are relatively low; the utility model is a "large cantilever" retaining wall, when the height of the retaining wall exceeds 12 meters, the wall itself is lighter and higher, and the advantages are particularly prominent; the CFRP anchor cable is used to connect the UHPC panel, which has excellent anti-overturning ability and ensures the stability of the overall structure.
Description
Technical Field
The utility model relates to a retaining wall, in particular to a large-cantilever light durable UHPC retaining wall.
Background
The retaining wall is an engineering structure for preventing landslide, collapse or lateral movement of soil mass, and is generally used in civil engineering to protect slope grounds, supporting roadbeds, river levees, foundation pits, etc. The design of retaining walls is intended to provide stable support to prevent uncontrolled movement of soil and rock, thereby protecting surrounding structures and areas. Retaining walls come in a variety of structural types, such as gravity retaining walls, cantilever retaining walls, retaining dams, etc., each type of retaining wall having its specific application and design concept. Common retaining wall materials are concrete, rebar, rock or earth work composite materials, etc., the choice of which depends on the design requirements, soil properties and engineering environment.
The conventional masonry retaining wall has the disadvantages of large volume and heavy weight, has high requirements on the bearing capacity of the foundation, and needs to be treated in various ways in order to meet the requirements on the bearing capacity of the foundation in soft foundation sections with poor geology, and has the advantages in weight, however, when the height of the retaining wall exceeds 12 meters, the anti-overturning capacity of the retaining wall can be obviously weakened, and in this case, the wall is easily influenced by inclination and overturning due to the dead weight of the soil body and other external factors such as earthquake or water pressure which may exist, so that the stability of the whole structure is influenced.
Disclosure of utility model
The utility model aims to provide the large-cantilever light durable UHPC retaining wall which has the advantages of small volume, light weight, convenient construction, lower requirement on the foundation and capability of ensuring the stability of the whole structure.
The large cantilever light durable UHPC retaining wall is characterized by comprising a retaining wall body formed by casting ultra-high performance concrete and CFRP anchor ropes, wherein the retaining wall body is formed by a pair of T-shaped retaining wall units, each retaining wall unit consists of a bottom plate at the bottom and a panel longitudinally arranged on the upper surface of the bottom plate, and two ends of each CFRP anchor rope are respectively anchored in the panels of the two retaining wall units so as to connect the two retaining wall units.
The utility model adopts ultra-high performance concrete materials, so that the retaining wall has excellent corrosion resistance, and the utility model has small volume and light weight due to the adoption of light UHPC materials, overcomes the defects of huge volume and heavy weight of the traditional retaining wall, particularly in soft foundation sections, has more convenient construction due to lighter dead weight and relatively lower requirements on foundations, is a 'large cantilever' retaining wall, has more light weight and higher height compared with the traditional retaining wall under the condition that the height of the retaining wall exceeds 12 meters, and has more remarkable advantages due to the adoption of CFRP (carbon fiber reinforced polymer) anchor cables for connecting UHPC panels, so that the utility model has excellent anti-capsizing capability and ensures the stability of the integral structure.
The CFRP anchor cables are arranged in parallel along the longitudinal direction of the panel, and the CFRP anchor cables are positioned at the bottom and the top of the panel.
The CFRP anchor cables are arranged at a distance of 3 meters side by side, the distance between the CFRP anchor cable at the bottom of the panel and the top edge of the panel is 2/3 of the height of the panel, and the distance between the CFRP anchor cable at the top of the panel and the top edge of the panel is 1/3 of the height of the panel.
The retaining wall of the utility model has a height of greater than 12 meters. When the retaining wall of the present utility model has a height exceeding 12 meters, the wall body itself is lighter and has a higher height than the conventional retaining wall, and the advantages of the present utility model are particularly remarkable.
The panel and the bottom plate are connected with the longitudinal steel bars through the transverse steel bars which are crisscrossed in the panel and the bottom plate, and are integrally cast by ultra-high performance concrete, so that the strength of the UHPC panel and the UHPC bottom plate is enhanced, the acting force between the two steel bars is enhanced by the crisscrossed steel bars, and the stress is reduced.
Compared with the prior art, the utility model has the following remarkable effects:
⑴ The utility model adopts the ultra-high performance concrete material, so that the retaining wall has excellent corrosion resistance, and the retaining wall has small volume and light weight due to the adoption of the light UHPC material, overcomes the defects of huge volume and heavy weight of the traditional retaining wall, and has lighter dead weight, so that the construction is more convenient and faster and the requirement on the foundation is relatively lower, especially in a soft foundation section.
⑵ The utility model relates to a large cantilever retaining wall, which has lighter weight and higher height than the traditional retaining wall under the condition that the height of the retaining wall exceeds 12 meters, and has outstanding advantages.
⑶ The UHPC panel is connected by using the CFRP (carbon fiber reinforced polymer) anchor cable, so that the UHPC panel has excellent anti-overturning capability and ensures the stability of the whole structure.
Drawings
The utility model will now be described in further detail with reference to the drawings and to specific examples.
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a top view of the present utility model;
fig. 4 is a schematic view of the reinforcement of the present utility model.
Detailed Description
The utility model is further illustrated by the following description of specific embodiments, which are not intended to be limiting, and various modifications or improvements can be made by those skilled in the art in light of the basic idea of the utility model, but are within the scope of the utility model as long as they do not depart from the basic idea of the utility model.
As shown in fig. 1 to 4, the large cantilever light durable UHPC retaining wall of the present utility model comprises a retaining wall body 5 formed by casting ultra-high performance concrete, and CFRP anchor cables 3, wherein the retaining wall body 5 is formed by a pair of T-shaped retaining wall units 4, the retaining wall units 4 are formed by a bottom plate 2 at the bottom and a panel 1 longitudinally arranged on the upper surface of the bottom plate 2, and two ends of the CFRP anchor cables 3 are respectively anchored in the panels 1 of the two retaining wall units 4 so as to connect the two retaining wall units 4.
The UHPC panel and the UHPC bottom plate are made of ultra-high performance concrete, so that the dead weight of the structure is effectively alleviated, and meanwhile, the structural durability is improved.
The CFRP anchor lines 3 are arranged side by side in the longitudinal direction of the panel 1, and the CFRP anchor lines 3 are located at the bottom and top of the panel 1. The CFRP anchor cable 3 is spaced 3 meters side by side, the distance between the CFRP anchor cable 3 at the bottom of the panel 1 and the top edge of the panel 1 is 2/3 of the height of the panel 1, and the distance between the CFRP anchor cable 3 at the top of the panel 1 and the top edge of the panel 1 is 1/3 of the height of the panel 1. The CFRP anchor cable 3 connects two retaining wall units 4 into a whole, and when horizontal pushing force acts on the UHPC panel, the CFRP anchor cable 3 can effectively offset bending moment, so that anti-overturning capacity is enhanced.
The panel 1 and the bottom plate 2 are connected with the longitudinal steel bars through transverse steel bars crisscrossed in the panel and the bottom plate, and are cast into a whole by ultra-high performance concrete. Therefore, the strength of the UHPC panel and the UHPC bottom plate is increased, and the reinforcing steel bars which are arranged in a crisscross manner increase the acting force between the reinforcing steel bars and reduce the stress.
The construction method of the large cantilever light durable UHPC retaining wall comprises the following steps:
s1, after paying off an assembled gravity type retaining wall base line, excavating until the bottom of a broken stone cushion layer is high, backfilling the broken stone cushion layer, and constructing a concrete leveling layer after compaction;
s2, constructing two bottom plates on the concrete leveling layer, namely binding foundation steel bars on site, standing a mould to pour retaining wall foundation concrete, and performing maintenance and construction joint roughening work;
s3, constructing two panels, namely firstly building a scaffold, binding wall steel bars on site, then installing CFRP anchor cables, combining steel mould forming, and pouring wall concrete;
s4, backfilling the earthwork of the roadbed.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model, and it is intended that the appended claims be interpreted as covering all equivalent modifications and variations as fall within the true spirit and scope of the utility model.
Claims (5)
1. A large cantilever light durable UHPC retaining wall is characterized by comprising a retaining wall body formed by casting ultra-high performance concrete and CFRP anchor ropes, wherein the retaining wall body is formed by a pair of T-shaped retaining wall units, each retaining wall unit consists of a bottom plate at the bottom and a panel longitudinally arranged on the upper surface of the bottom plate, and two ends of each CFRP anchor rope are respectively anchored in the panels of the two retaining wall units so as to connect the two retaining wall units.
2. The large cantilever lightweight durable UHPC retaining wall of claim 1, wherein the CFRP anchor lines are juxtaposed longitudinally of the face plate and the CFRP anchor lines are located at the bottom and top of the face plate.
3. The large cantilever lightweight durable UHPC retaining wall of claim 2, wherein the CFRP anchor lines are spaced 3 meters side by side, the CFRP anchor lines at the bottom of the panel are spaced 2/3 of the panel height from the top edge of the panel, and the CFRP anchor lines at the top of the panel are spaced 1/3 of the panel height from the top edge of the panel.
4. The large cantilever lightweight durable UHPC retaining wall of claim 3, wherein the retaining wall has a height of greater than 12 meters.
5. The large cantilever lightweight durable UHPC retaining wall of claim 4, wherein the panels and bottom plates are connected to the longitudinal bars by criss-cross transverse bars and are integrally cast from ultra-high performance concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420822729.6U CN222227363U (en) | 2024-04-19 | 2024-04-19 | Large cantilever light durable UHPC retaining wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420822729.6U CN222227363U (en) | 2024-04-19 | 2024-04-19 | Large cantilever light durable UHPC retaining wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222227363U true CN222227363U (en) | 2024-12-24 |
Family
ID=93915178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420822729.6U Active CN222227363U (en) | 2024-04-19 | 2024-04-19 | Large cantilever light durable UHPC retaining wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222227363U (en) |
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2024
- 2024-04-19 CN CN202420822729.6U patent/CN222227363U/en active Active
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